Commit 370df805 authored by John Levon's avatar John Levon Committed by Tomasz Zawadzki
Browse files

nvmf/vfio-user: remove unnecessary read barrier 



The spdk_rmb() in nvmf_vfio_user_poll_group_poll() is unnecessary: we
already have a read barrier for SQ tail updates at the per-SQ level, so
this doesn't add anything.

Signed-off-by: default avatarJohn Levon <john.levon@nutanix.com>
Change-Id: I88cddd968f4a949640754526e19cb869d9fb31af
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/12381


Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarChangpeng Liu <changpeng.liu@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
parent acba8082

lib/nvmf/vfio_user.c

+0 −2
Original line number Diff line number Diff line
@@ -5171,8 +5171,6 @@ nvmf_vfio_user_poll_group_poll(struct spdk_nvmf_transport_poll_group *group) 


	assert(group != NULL);



	spdk_rmb();



	vu_group = SPDK_CONTAINEROF(group, struct nvmf_vfio_user_poll_group, group);



	SPDK_DEBUGLOG(vfio_user_db, "polling all SQs\n");